Home / 13,839.26-20,760.44-5,074.14

Finding the Fourth Proportional to 13,839.26, 20,760.44 and 5,074.14

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Solution

The fourth proportional to 13,839.26, 20,760.44 and 5,074.14 is: 7,611.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.26 : 20,760.44 = 5,074.14 : x
  2. Step 2: Convert to fraction form
    13,839.26/20,760.44 = 5,074.14/x
  3. Step 3: Cross multiply
    13,839.26x = 20,760.44 × 5,074.14
  4. Step 4: Simplify right side
    13,839.26x = 105,341,431.50
  5. Step 5: Solve for x
    x = 105,341,431.50/13,839.26
  6. Step 6: Final answer
    x = 7,611.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.